Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-11-08
Astronomy and Astrophysics
Astrophysics
4 pages, 4 figures, Proc. 29th ICRC, 2005, rus-prosin-VV-abs1-he12-poster
Scientific paper
A new method of a primary cosmic particle energy measurement with the extensive air shower (EAS) technique has been developed by exploiting: a) the joint analysis of the shower size, obtained by the EAS-TOP array, and of the EAS Cherenkov light lateral distribution (LDF), obtained by the QUEST array, and b) simulations based on the CORSIKA code. The method is based on the strict correlation between the size/energy ratio and the steepness of the Cherenkov light lateral distribution and has been compared with a "classical" one based on the Cherenkov light flux at a fixed distance (175 m) from the EAS core. The independence of the energy measurement both on the mass of primary particle and the hadronic interaction model used for the analysis is shown. Based on this approach the experimental integral intensity of cosmic rays flux with energy more than 3*10^15 eV is obtained with good systematic and statistical accuracy.
COLLABORATION EAS-TOP
Korosteleva E. E.
Kuz'michev L. A.
Prosin V. V.
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